Lakes around Breil/Brigels offer access to several mountain lakes in the Swiss Alps. This charming mountain village provides a diverse natural landscape for exploration. The area features lakes with unique characteristics, from high-alpine sources to accessible forest lakes. Visitors can find opportunities for hiking, relaxation, and observing natural features.
Last updated: May 1, 2026
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Cold lake great for cooling feet and a great place to take a break with a view of the glacier and the mountains
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Great view and spectacular lake. Very cold to dip. The route to it is tough, but worth it.
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The Muttsee (formerly Mutten See, Muttensee) is a reservoir on the Muttenalp in the southernmost part of the municipality of Glarus South in the canton of Glarus in Switzerland.
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In 1957, the newly founded Kraftwerke Linth-Limmern AG (KLL) began to realize the power plants that had been planned since the beginning of the 1940s by the Nordostschweizerische Kraftwerke (NOK), into which the Muttensee was to be integrated.
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Until 1917, the official name was "Mutten See", then the spelling "Muttensee" appeared. From 1963, the spelling "Muttsee" appeared. The Hühnerbühl is now known in dialect as Hüenderbüel.[3] The kidney-shaped mountain lake was about 1000 meters long and 400 to 500 meters wide. On the Muttenalp plateau known as Hühnerbühl, it covered an area of about 42 hectares. The height of the lake surface was given as 2442 m until 1899, and 2448 m from 1900 to 1962. In the southeast, the lake was drained by a stream, which after a few hundred meters, at about 2400 m, disappeared into the Muttsee cave in the karst subsoil of the Muttenalp.[6] A little to the south, from about 2450 m, the Muttenbach collected the snow water from the Latten via various small tributaries.[5] It led this into the Limmernbach via the Mörthal and the Ochsenblanken.
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The lake is registered in the cantonal landscape register as a landscape of regional importance.[4] In the karst area of the Muttenalp there are - in addition to the Muttsee cave and the Muttsee hut - various other small lakes, most of them distributed southwest of the Muttsee over the Hüenderbüel. The largest neighbor, the Ober See, lies north of the Muttsee at 2474 m. It is the only lake on the Muttenalp that is connected to the Muttsee via its outflow.
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The lake is located at the crossing from Linthal-Tierfehd over the Kistenpass to Brigels. It lies in the 2.95 square kilometer basin of the Muttenalp above the Hüenderbüel. The alp is surrounded by high mountains such as Nüschenstock (2892 m) in the west, Rüchi (2849 m) in the northwest, Hinter Sulzhorn (2737 m) in the northeast, Ruchi (3105 m) in the east and Muttenstock (3088 m) in the southeast. The arena opens to the southwest. It drops steeply over the Muttenwand into the Limmerental and over the Muttenchopf (2482 m) to the Limmerensee.
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You can explore a diverse range of lakes. Lag da Pigniu Dam is a notable man-made monument with a 270-meter long dam wall and a faded painting depicting the crossing of the Panixer Pass. Muttsee Reservoir is Switzerland's highest reservoir, featuring the country's longest dam wall. For a natural wonder, Lag da Tuma (Tomasee) is renowned as the source of the Rhine River, nestled at 2,343 meters above sea level.
Yes, several lakes are great for families. Dachlisee is a hidden forest lake with a wood fire pit, tables, benches, and a toilet, making it ideal for picnics. The path to Dachlisee from Affeier is also pram-friendly. Lag da Breil (Brigelsersee) also has a dedicated swimming lake next to it with a sunbathing lawn, playground, and mini-golf course, and the area around it is pram-friendly.
While swimming is generally not permitted in Lag da Breil itself, a dedicated swimming lake is located right next to it, part of the Pradas Resort. Its water is naturally heated by solar panels during the bathing season. You can also take a refreshing swim in Lag da Tuma (Tomasee) during the summer months, though the water will be cold as it's a high-alpine lake.
The region offers a variety of hiking trails. For instance, the hike to Lag da Tuma from Oberalp Pass takes about two hours and is a mountain trail requiring good footwear. From Lag da Tuma, you can hike further to the Badushütte for panoramic views. For easier walks, a well-maintained, pram-friendly path allows for a leisurely 20-30 minute walk around Lag da Breil. You can find more hiking routes in the area by visiting the Hiking around Breil/Brigels guide.
Access varies by lake. Lag da Breil is easily accessible, located just east of the village center. For Lag da Tuma, it's primarily accessed via a hike from the Oberalp Pass, which can be reached by public transport. Dachlisee can be reached via a pram-friendly path from Affeier or a short hiking trail from Valata, both of which likely have parking options or public transport connections to the starting points.
While specific dog-friendly regulations for each lake are not detailed, many hiking trails around the lakes are suitable for dogs, provided they are kept on a leash and owners clean up after them. The path around Lag da Breil is a good option for a leisurely walk with a dog. Always check local signage for specific restrictions.
The best time to visit is generally from late spring to early autumn (June to September). During late June to early July, rare wildflowers bloom around Lag da Tuma, and in August, its meadows are covered in cotton grass. Summer allows for swimming in some lakes. Winter offers opportunities for snowshoeing or winter hiking around some of the more accessible lakes, but high-alpine lakes like Lag da Tuma will be frozen and require specialized gear.
Around Lag da Breil, you can enjoy a leisurely walk on the pram-friendly path, which takes about 20 to 30 minutes. Adjacent to the lake, there's a playground and a mini-golf course, as well as picnic benches and a barbecue area. Fishing is permitted with the necessary permits from the Canton of Graubünden. It also serves as an excellent starting point for hiking and cycling tours.
Lag da Tuma is significant because it is officially recognized as the source of the Rhine River, one of Europe's most important waterways. Situated at 2,343 meters above sea level, it collects crystal-clear mountain water from twelve streams and is surrounded by peaks over two thousand meters high. The landscape is part of the Federal Inventory of Landscapes and Natural Monuments of National Importance.
Yes, the area around Breil/Brigels offers various outdoor activities. You can find numerous road cycling routes, such as the 'Disentis Abbey – Lukmanier Pass loop from Rueun,' or gravel biking trails like 'Brigels Bella Vista.' For more options, explore the Road Cycling Routes around Breil/Brigels and Gravel biking around Breil/Brigels guides.
Visitors frequently appreciate the tranquil settings and beautiful mountain panoramas. The unique characteristics of each lake, from the high-alpine source of the Rhine at Lag da Tuma to the accessible, family-friendly facilities at Lag da Breil and Dachlisee, are highly valued. The integration of nature with recreational opportunities like playgrounds, barbecue areas, and well-maintained paths also receives positive feedback.
Beyond the more prominent lakes, you might consider Griesslisee, a glacier lake located at the foot of the Clariden north face, offering stunning views. Lag da Laus is another beautiful and somewhat hidden small lake that is particularly rewarding to visit, especially in autumn when deer can be spotted.


Still not found your perfect lake around Breil/Brigels? Check out the guides of these regions to see even more beautiful places.